Definition · Updated June 2026

What is Customer Satisfaction Score (CSAT)? Plain-English 2026 answer.

CSAT is the quick pulse check on a specific interaction or product. Here is how it is calculated, when to use it, and how it differs from NPS.

Short answer

Customer Satisfaction Score (CSAT) measures how satisfied customers are with a specific interaction, product, or service, usually on a 1 to 5 scale, expressed as the percentage who responded favorably.

Definition

CSAT asks a direct question right after an experience: how satisfied were you. You take the share of respondents who chose the top one or two ratings (for example, 4 and 5 on a 5-point scale) as your CSAT percentage. Unlike NPS, which gauges long-term loyalty, CSAT is transactional and best for measuring a specific touchpoint such as a support ticket or onboarding step.

How it is calculated

CSAT = (Number of satisfied responses (top 1-2 ratings) / Total responses) x 100

After 300 support tickets, you survey and get 180 responses, of which 153 rate 4 or 5. CSAT = (153 / 180) x 100 = 85 percent. That tells you support is doing well; it does not tell you whether those customers will renew.

Why it matters

CSAT pinpoints where a specific experience is strong or weak, which makes it actionable for operations: a low CSAT on onboarding tells you exactly where to fix the journey. Measured at the right touchpoints, it catches problems before they show up in churn. AI makes it easy to theme the open-text feedback behind the scores.

What to watch out for

Frequently asked questions

How is CSAT calculated?
Divide the number of satisfied responses (typically the top one or two ratings) by total responses, times 100. The result is the percentage of customers who were satisfied with that experience.
What is a good CSAT score?
Broadly, 75 to 85 percent is solid and above 90 percent is excellent, but it varies by industry and touchpoint. Track your own trend over time.
When should I use CSAT instead of NPS?
Use CSAT to measure a specific interaction (support, onboarding, a purchase) and NPS to gauge overall loyalty. They answer different questions.

Related terms

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